How to use: Before use, twist the light switch in the correct direction. There is a white diaphragm inside that can be removed to turn on the light. Designed for Slushi FS301/FS300: Features a plug-and-play design with a capsule-shaped lighting module that fits the machine's bottom slot. No tools or installation required—simply place it in and enjoy the illuminated experience. Wireless Remote Control Dynamic Light Effect System: This LED light set includes 13 colors and 4 light effects (flash, strobe, gradient color mixing, party flash). An ideal accessory for enhancing your slushie machine. Non-Interference Operation Experience: The ultra-thin body (30mm x 20mm) fits completely within the machine slot without blocking the feeding or observation window. The bottle cap size precisely matches the bottom slot of the mixing container for direct placement and activation. No installation or tools needed. Fun for Parties: Add a vibrant, festive touch to any event. Whether it's a birthday party, wedding reception, or holiday gathering, the colorful lighting effects create a lively atmosphere, making your slushie machine the centerpiece of the occasion. Color: Transparent Material: Plastic Package Contents: 4 x Lights, 1 x Remote Control Note: Light reflection and display differences may cause slight variations between the item color in the image and the actual product. Measurement error allowance is +/- 1-3 cm.